Confession time. After trying really hard – probably more like medium-level hard; like morning-bus-ride-to-9th-grade hard – I admittedly don’t understand Reddit. I’ve typed in the URL (computer speak for long combinations of letters and numbers that display websites). I’ve scrolled down the screen. I’ve even looked through the little groups at the top – are these “sub-reddits”? It doesn’t make any sense to me. All...